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1396392693 = 31074350133
BaseRepresentation
bin101001100111011…
…0100001011110101
310121022120002122220
41103032310023311
510324434031233
6350321312553
746414066503
oct12316641365
93538502586
101396392693
11657255553
1232b795759
131933b7887
14d3653673
15828d0eb3
hex533b42f5

1396392693 has 8 divisors (see below), whose sum is σ = 1879257888. Its totient is φ = 922227984.

The previous prime is 1396392677. The next prime is 1396392709. The reversal of 1396392693 is 3962936931.

It is an interprime number because it is at equal distance from previous prime (1396392677) and next prime (1396392709).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1396392693 - 24 = 1396392677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396392653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174746 + ... + 2175387.

It is an arithmetic number, because the mean of its divisors is an integer number (234907236).

Almost surely, 21396392693 is an apocalyptic number.

It is an amenable number.

1396392693 is a deficient number, since it is larger than the sum of its proper divisors (482865195).

1396392693 is a wasteful number, since it uses less digits than its factorization.

1396392693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350243.

The product of its digits is 1417176, while the sum is 51.

The square root of 1396392693 is about 37368.3381086181. The cubic root of 1396392693 is about 1117.7272931759.

The spelling of 1396392693 in words is "one billion, three hundred ninety-six million, three hundred ninety-two thousand, six hundred ninety-three".

Divisors: 1 3 107 321 4350133 13050399 465464231 1396392693